In a view looking northwest from above, the aftermath of a gas explosion in downtown Sun Prairie, Wis., is seen Wednesday, July 11, 2018. At the top right of the image is the site of the former Barr House where the explosion originated and leveled the building. Sun Prairie Fire Department Capt. Cory Barr was killed Tuesday when a natural gas explosion leveled most of a city block, including the tavern Barr owned. (John Hart/Wisconsin State Journal via AP)